Home / 12,234.72-18,358.80-6,396.48

Finding the Fourth Proportional to 12,234.72, 18,358.80 and 6,396.48

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Solution

The fourth proportional to 12,234.72, 18,358.80 and 6,396.48 is: 9,598.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,234.72 : 18,358.80 = 6,396.48 : x
  2. Step 2: Convert to fraction form
    12,234.72/18,358.80 = 6,396.48/x
  3. Step 3: Cross multiply
    12,234.72x = 18,358.80 × 6,396.48
  4. Step 4: Simplify right side
    12,234.72x = 117,431,697.02
  5. Step 5: Solve for x
    x = 117,431,697.02/12,234.72
  6. Step 6: Final answer
    x = 9,598.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.